Submission #967893

#	Time	Username	Problem	Language	Result	Execution time	Memory
967893		duckindog	Boat (APIO16_boat)	C++17	0 / 100	2035 ms	344 KiB

boat

#include <bits/stdc++.h>

using namespace std;

const int N = 500 + 10;
int n;
int a[N], b[N];

int answer;
int d[N];
void recursion(int it, int x) { 
  if (it > n) { 
    answer += 1;
    return;
  }
  
  recursion(it + 1, x);
  for (int i = max(a[it], x + 1); i <= b[it]; ++i) recursion(it + 1, i);
}

int32_t main() { 
  cin.tie(0)->sync_with_stdio(0);

  cin >> n;
  for (int i = 1; i <= n; ++i) cin >> a[i] >> b[i];

  recursion(1, 0);
  cout << answer - 1 << "\n";
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 27
• Subtask 4: 0 / 42